Multiple Choice Flashcards on 01 Databricks Certified Machine Learning Associ...

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Flashcard Practice Databricks Certified Machine Learning Associate Multiple Choice

A production model's predictions shift after a new high-income customer segment is added. Investigation shows missing income values are filled with a mean recomputed on the full production batch each day. What is the concern?

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The fill value can drift with the scoring batch and change inputs unpredictably. The imputer should use the target label from the scoring batch. The model will ignore income because the feature has imputed values. Mean imputation cannot be used for numeric production features.

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